//: generics/Store.java
// Building up a complex model using generic containers.
package generics;

import java.util.*;
import net.mindview.util.*;

class Product
{
    private final int id;
    
    private String description;
    
    private double price;
    
    public Product(int IDnumber, String descr, double price)
    {
        id = IDnumber;
        description = descr;
        this.price = price;
        System.out.println(toString());
    }
    
    public String toString()
    {
        return id + ": " + description + ", price: $" + price;
    }
    
    public void priceChange(double change)
    {
        price += change;
    }
    
    public static Generator<Product> generator = new Generator<Product>()
    {
        private Random rand = new Random(47);
        
        public Product next()
        {
            return new Product(rand.nextInt(1000), "Test", Math.round(rand.nextDouble() * 1000.0) + 0.99);
        }
    };
}

class Shelf extends ArrayList<Product>
{
    public Shelf(int nProducts)
    {
        Generators.fill(this, Product.generator, nProducts);
    }
}

class Aisle extends ArrayList<Shelf>
{
    public Aisle(int nShelves, int nProducts)
    {
        for (int i = 0; i < nShelves; i++)
            add(new Shelf(nProducts));
    }
}

class CheckoutStand
{
}

class Office
{
}

public class Store extends ArrayList<Aisle>
{
    private ArrayList<CheckoutStand> checkouts = new ArrayList<CheckoutStand>();
    
    private Office office = new Office();
    
    public Store(int nAisles, int nShelves, int nProducts)
    {
        for (int i = 0; i < nAisles; i++)
            add(new Aisle(nShelves, nProducts));
    }
    
    public String toString()
    {
        StringBuilder result = new StringBuilder();
        for (Aisle a : this)
            for (Shelf s : a)
                for (Product p : s)
                {
                    result.append(p);
                    result.append("\n");
                }
        return result.toString();
    }
    
    public static void main(String[] args)
    {
        System.out.println(new Store(14, 5, 10));
    }
} /*
   * Output: 258: Test, price: $400.99 861: Test, price: $160.99 868: Test, price: $417.99 207: Test, price: $268.99
   * 551: Test, price: $114.99 278: Test, price: $804.99 520: Test, price: $554.99 140: Test, price: $530.99 ...
   */// :~
